Lumbar puncture, Posterior cortical atrophy, Encephalitis, Dementia, Creutzfeldt Jakob disease, Normal pressure hydroce...phalus, Alzheimer's disease, Mild cognitive impairment, Primary progressive aphasia, Lewy body dementia, Frontotemporal dementia, Progressive supranuclear palsy, Autoimmune encephalopathy, Corticobasal syndrome, NMDA receptor antibody encephalitis, Wernicke-Korsakoff syndrome